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Old 05-03-2007, 02:23 PM   #1
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Default Touring Car Spring rates

Hi Guys, can someone please tell me the rating of HPI, Schumacher and Losi and Yokomo springs?
Colour and rating

Thanks

Ricky
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Old 05-03-2007, 02:40 PM   #2
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Click here ...

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Old 05-03-2007, 04:59 PM   #3
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Also....

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Old 05-03-2007, 05:28 PM   #4
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That looks awfully familiar.
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Old 05-04-2007, 05:40 AM   #5
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Quote:
Originally Posted by Jon Kerr
That looks awfully familiar.
Although I did have to respell Schumacher

Do these results still stand with the current batches etc or are they now different (i.e. correct )

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Old 05-04-2007, 08:49 AM   #6
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Yes you did. I caught that after I sent that to a few people. I guess that's what I get for making that up in the middle of the night.

As far as I know, it's still accurate. It was in XRC a couple of years ago so I guess some companies could have made changes since then.
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Old 05-04-2007, 11:11 AM   #7
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This is a chart that I have been trying to keep current. It includes Manufacturers listings, other people's testing and the tests XRC did a while ago using the Integy spring dyno. The HPI springs that are in light blue are the suspect ones and probably shouldn't be used. I have aa spring dyno but haven't had time to update.
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Old 05-04-2007, 11:14 AM   #8
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Part 2
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Old 05-04-2007, 11:17 AM   #9
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BTW, the XRC weights are for individual left and right springs tested.
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Old 05-04-2007, 11:38 AM   #10
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All the independent tests I have seen seem to prove one of two things. Either:

A - Springs are incredibly inconsistent straight from the manufacturer.

B - The spring dynos used to measure these springs are very inconsistent.

Since all the springs I have seen are wound virtually identically I am fairly sure the production method is sound.

For that reason I have personally stopped worrying about measured rates and just use springs as the manufacturers rate them, and only use one brand of spring on the car.
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Old 05-04-2007, 11:56 AM   #11
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Actually manufacturing tolerances for springs is very hard to achieve. Do your own testing, but for the most part there will be inconsistencies.
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Old 04-05-2012, 07:51 AM   #12
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Anyone know where I can get an updated spring comparison chart. Associated vs xray? Thanks
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Old 04-05-2012, 08:26 AM   #13
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Does anyone have the SpecR spring rates as lb to add to the comparison?

Thanks.
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Old 04-05-2012, 07:11 PM   #14
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http://www.petitrc.com/index.php?page=springs_oils
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